This machine is available in two versions: the HDL2600-SD and HDL2600-HD. These are extra large capacity ultra-precision machining systems used for single point diamond turning advanced optical surfaces along the diameter of large generation drums. This machine accepts drums up to 650mm diameter and 3100mm long (between chuck faces) with a weight capacity of 1800 Kg (3000 Kg on HD version). Maximum optical cutting zone length is 2600mm.